FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing compound (III) or a product which is not protected. Method involves reacting compound (II) with chloroacetic acid in the presence of a reducing agent. PG is a protective group and R is OH in an appropriately protected form or
.
Invention also relates to methods of producing other intermediate compounds which include the above method, as well as to intermediate compounds.
,
.
EFFECT: invention can be used in synthesis of melphalan and melflufen.
25 cl, 4 ex
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